sla@5237: /*
sla@5237:  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
sla@5237:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
sla@5237:  *
sla@5237:  * This code is free software; you can redistribute it and/or modify it
sla@5237:  * under the terms of the GNU General Public License version 2 only, as
sla@5237:  * published by the Free Software Foundation.
sla@5237:  *
sla@5237:  * This code is distributed in the hope that it will be useful, but WITHOUT
sla@5237:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
sla@5237:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
sla@5237:  * version 2 for more details (a copy is included in the LICENSE file that
sla@5237:  * accompanied this code).
sla@5237:  *
sla@5237:  * You should have received a copy of the GNU General Public License version
sla@5237:  * 2 along with this work; if not, write to the Free Software Foundation,
sla@5237:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
sla@5237:  *
sla@5237:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
sla@5237:  * or visit www.oracle.com if you need additional information or have any
sla@5237:  * questions.
sla@5237:  *
sla@5237:  */
sla@5237: #ifndef SHARE_VM_TRACE_TRACEBACKEND_HPP
sla@5237: #define SHARE_VM_TRACE_TRACEBACKEND_HPP
sla@5237: 
sla@5237: #include "utilities/macros.hpp"
sla@5237: 
sla@5237: #if INCLUDE_TRACE
sla@5237: 
sla@5237: #include "runtime/globals.hpp"
sla@5237: #include "runtime/os.hpp"
sla@5237: #include "trace/traceTime.hpp"
sla@5237: #include "tracefiles/traceEventIds.hpp"
sla@5237: 
sla@5237: class TraceBackend {
sla@5237: public:
sla@5237:   static bool enabled(void) {
sla@5237:     return EnableTracing;
sla@5237:   }
sla@5237: 
sla@5237:   static bool is_event_enabled(TraceEventId id) {
sla@5237:     return enabled();
sla@5237:   }
sla@5237: 
sla@5237:   static TracingTime time() {
sla@5237:     return os::elapsed_counter();
sla@5237:   }
sla@5237: 
sla@5237:   static TracingTime time_adjustment(jlong time) {
sla@5237:     return time;
sla@5237:   }
sla@5237: 
sla@5237:   static void on_unloading_classes(void) {
sla@5237:   }
sla@5237: };
sla@5237: 
sla@5237: class TraceThreadData {
sla@5237: public:
sla@5237:     TraceThreadData() {}
sla@5237: };
sla@5237: 
sla@5237: typedef TraceBackend Tracing;
sla@5237: 
sla@5237: #else /* INCLUDE_TRACE */
sla@5237: 
sla@5237: #include "trace/noTraceBackend.hpp"
sla@5237: 
sla@5237: #endif /* INCLUDE_TRACE */
sla@5237: #endif /* SHARE_VM_TRACE_TRACEBACKEND_HPP */